00:00Sleeping between 7 and 8 hours a night lowers dementia risk,
00:04a condition that affects memory and thinking more than any other amount, new research suggests.
00:09But why does just the right amount of sleep matter so much for brain health?
00:13A team at York University in Canada analyzed data from almost 4.5 million people across 69 studies.
00:20They found that less than 7 hours of sleep raises dementia risk by 18%,
00:25while more than 8 hours increases it by 28%.
00:29The researchers also linked sitting more than 8 hours a day
00:32and exercising less than 150 minutes weekly to higher dementia chances.
00:37They say regular physical activity, less sedentary time, and appropriate nightly sleep
00:43may be associated with reduced risk of dementia.
00:46Yet, they caution these are associations, not proven causes,
00:50since too much sleep might signal early Alzheimer's rather than cause it.
00:54This research highlights why getting the right amount of sleep is crucial
00:58for protecting your brain and lowering dementia risk.
01:01Disclosure.
01:02This video contains stock footage and content created or enhanced using AI-assisted tools.
